Reference |
The free end of the reference plane.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)


Exception | Condition |
---|---|
ArgumentNullException | When setting this property: A non-optional argument was null |

When setting this property, an exception will be thrown if the free end is set to almost the same point as bubble end or if the vector from BubbleEnd -> FreeEnd is not perpendicular to the normal vector.
